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Finding the Third Proportional to 79,636 and 171,608

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Solution

The third proportional to 79,636 and 171,608 is: 369,798.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,636 : 171,608 = 171,608 : x
  2. Step 2: Convert to fraction form
    79,636/171,608 = 171,608/x
  3. Step 3: Cross multiply
    79,636x = 171,608 × 171,608
  4. Step 4: Simplify right side
    79,636x = 29,449,305,664
  5. Step 5: Solve for x
    x = 29,449,305,664/79,636
  6. Step 6: Final answer
    x = 369,798.91

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.